2 Configuration Summary

Table 2-1. Configuration Summary
ATmega48PBATmega88PBATmega168PB
Pin count323232
Flash (KB)4816
SRAM (Bytes)51210241024
EEPROM (Bytes)256512512
Max I/O pins27
SPI1
TWI (I2C)1
USART1
ADC10-bit 15ksps
ADC channels8
AC1
8-bit Timer/Counters2
16-bit Timer/Counters1
PWM channels6
Operating voltage1.8V - 5.5V
Max operating frequency20MHz
Temperature range-40°C to +105°C